Home / 13,623.38-20,434.16-4,858.37

Finding the Fourth Proportional to 13,623.38, 20,434.16 and 4,858.37

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Solution

The fourth proportional to 13,623.38, 20,434.16 and 4,858.37 is: 7,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.38 : 20,434.16 = 4,858.37 : x
  2. Step 2: Convert to fraction form
    13,623.38/20,434.16 = 4,858.37/x
  3. Step 3: Cross multiply
    13,623.38x = 20,434.16 × 4,858.37
  4. Step 4: Simplify right side
    13,623.38x = 99,276,685.63
  5. Step 5: Solve for x
    x = 99,276,685.63/13,623.38
  6. Step 6: Final answer
    x = 7,287.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.